Dalek Thay

Dalek Thay is an esteemed member of the a group of Dalek Elitests, The Cult of Skaro and was the first to be named on screen. He initiated Dalek hostiles in the battle of the Cybermen. Thay fought in the Battle of Canary Wharf and "temporally shifted" along with the other members of the Cult of Skaro when the Doctor reopened the Void. Dalek Thay used to be part of a secret Dalek Research Facility - Station Alpha before being premoted by the Dalek Emperor.